<div class="row">
    <div class="col-md-4 mt-4">
        <div class="card">
            <div class="card-header bg-info text-white">
                infomation
            </div>
            <div class="card-body">
                <marquee behavior="" direction="">
                    <!--<h3 class="my-4">新消息</h3>-->

                </marquee>
            </div>
        </div>
    </div>
    <div class="col-md-8 mt-4">
        <div class="card">
            <div class="card-header bg-info text-white">
                dashboard
            </div>
            <div class="card-body">
                <div class="row">
                    <div class="col-md-4">
                        <a class="text-decoration-none text-dark" href="">
                            <div class="card my-card shadow">
                                <div class="card-body text-center">
                                    <h4>user <i class="fas fa-users"></i></h4>
                                    <h3></h3>
                                </div>
                            </div>
                        </a>
                    </div>
                    <div class="col-md-4">
                        <a class="text-decoration-none text-dark" href="">
                            <div class="card my-card shadow">
                                <div class="card-body text-center">
                                    <h4>product <i class="fas fa-box"></i></h4>
                                    <h3></h3>
                                </div>
                            </div>
                        </a>
                    </div>
                    <div class="col-md-4">
                        <a class="text-decoration-none text-dark" href="">
                            <div class="card my-card shadow">
                                <div class="card-body text-center">
                                    <h4>order <i class="fas fa-shipping-fast"></i></h4>
                                    <h3></h3>
                                </div>
                            </div>
                        </a>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>